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The V-Cube 7 is a combination puzzle in the form of a 7×7×7 cube. The first mass-produced 7×7×7 was invented by Panagiotis Verdes and is produced by the Greek company Verdes Innovations SA. Other such puzzles have since been introduced by a number of Chinese companies, [ 1 ] some of which have mechanisms which improve on the original.
On March 10, 2018, Hays became the first person to solve a 7x7 in under 2 minutes in competition, breaking the world record with a time of 1:59.95. [ 14 ] On August 10, 2019 Hays posted a statement indicating his retirement from elite speedcubing , shifting his focus to enjoying speedcubing as a hobby rather than a sport.
The book mentions speed cubing on page 56 — citing the following times: 20 minutes - whiz; 10 minutes - speed demon; 5 minutes - expert; 3 minutes - master of cube (M.C.) As of 2025, the modern record for speed cubing is 3.13 seconds, set by Max Park in 2023. [5]
As of today, methods such as 3-Style and M2 are among the fastest and most popular blind-solving methods. The Old Pochmann Method, which is a method that solves one piece at a time, is a method typically used by beginner blindsolvers. Blindfolded solvers use letter patterns to help memorize sequences of moves in order to solve the cube.
[2] For most events, an average of five is taken, but for 6×6×6, 7×7×7, 3×3×3 blindfolded, 3×3×3 fewest moves, 4×4×4 blindfolded and 5×5×5 blindfolded, an average of three is taken. For averages of five solves, the best time and the worst time are dropped, and the mean of the remaining three solves is taken. For averages of three ...
While the method stands alone as an efficient system for solving the Rubik's Cube, many modifications have been made over the years to stay on the cutting edge of competitive speedcubing. Many more algorithms have been added to shave seconds off the solution time, and steps 5+6 or 6+7 are often combined depending on the problems each case presents.
[1] [2] The group operation is the composition of cube moves, corresponding to the result of performing one cube move after another. The Rubik's Cube is constructed by labeling each of the 48 non-center facets with the integers 1 to 48.
Jessica Fridrich (born Jiří Fridrich) is a professor at Binghamton University, who specializes in data hiding applications in digital imagery.She is also known for documenting and popularizing the CFOP method (sometimes referred to as the "Fridrich method"), one of the most commonly used methods for speedsolving the Rubik's Cube, also known as speedcubing. [1]